CN214938891U

CN214938891U - Stable roadbed structure

Info

Publication number: CN214938891U
Application number: CN202120842973.5U
Authority: CN
Inventors: 时锋; 陈哲; 钱建军
Original assignee: Kunshan Lutongdao Bridge Maintenance Co ltd
Current assignee: Kunshan Lutongdao Bridge Maintenance Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-30
Anticipated expiration: 2031-04-23

Abstract

The utility model belongs to the technical field of road construction and specifically relates to a stable roadbed structure is related to, it includes the ground and sets up the base member on the ground, be equipped with the infiltration well in the base member, the infiltration well extends to in the ground along vertical direction downwards, a plurality of infiltration holes have been seted up on the lateral wall of infiltration well, be equipped with the anti-filtration piece that is used for filtering silt in the groundwater in the infiltration well. This application has the effect of dispatching groundwater, promotes the stability of road bed.

Description

Stable roadbed structure

Technical Field

The application relates to the field of road construction, in particular to a stable roadbed structure.

Background

The roadbed is a foundation of a track or a road surface and is an earth structure formed by excavation or filling. The roadbed mainly has the functions of providing necessary conditions for track or road surface laying and train or traveling operation, bearing static load and dynamic load of track and locomotive vehicle or road surface and traffic load, and transmitting and diffusing the load to the deep part of the foundation.

At present, the construction of the roadbed is usually carried out in a soil filling mode, namely, soil is filled back on the ground after cleaning. And (3) paving the soil body on the ground by using a loader, leveling the soil body on the ground by using a road leveling machine, and finally, rolling and compacting by using a road roller to form the final roadbed.

Because the land of different areas has difference, some areas with larger groundwater flow, the influence of groundwater activity on the roadbed is larger, the stability of the roadbed is poorer, and the paving of the road is influenced.

SUMMERY OF THE UTILITY MODEL

In order to schedule groundwater, promote the stability of road bed, this application provides a stable roadbed structure.

The application provides a stable roadbed structure adopts following technical scheme:

the utility model provides a stable roadbed structure, includes the ground and sets up the base member on the ground, be equipped with the infiltration well in the base member, the infiltration well is along vertical direction downwardly extending to in the ground, a plurality of infiltration holes have been seted up on the lateral wall of infiltration well, be equipped with the anti-filtration piece that is used for filtering silt in the groundwater in the infiltration well.

Through adopting above-mentioned technical scheme, set up the infiltration well and make the groundwater in the ground flow in darker groundwater channel, reduce the influence of groundwater to the road bed, promote the stability of road bed.

Optionally, the reverse filter is graded crushed stone, and the particle size of the graded crushed stone is gradually reduced along the direction from the inner wall of the infiltration well to the central line.

Through adopting above-mentioned technical scheme, the graded broken stone filters groundwater, blocks the silt of groundwater, reduces the soil erosion that groundwater flow leads to, promotes ground stability, indirectly promotes the stability of road bed.

Optionally, a support plate is arranged on the inner wall of the permeation well, and a support layer is arranged on the support plate.

Through adopting above-mentioned technical scheme, backup pad and supporting layer promote the intensity of base member, make the base member have stronger bearing capacity.

Optionally, a heat insulating layer is arranged in the substrate.

Through adopting above-mentioned technical scheme, the heat on insulating layer separation base member surface conducts to the base member in, reduces the base member to the heat of ground conduction, reduces the influence of temperature to the ground.

Optionally, the level runs through in the base member has many ventilation pipes, every a plurality of ventilation holes have all been seted up on the lateral wall of ventilation pipe, and are a plurality of the ventilation hole all sets up towards the ground.

Through adopting above-mentioned technical scheme, the heat in ventilation pipe and ventilation hole in with the ground gives off, reduces the temperature rate of rise of ground, promotes the stability of frozen soil ground, promotes the stability of road bed.

Optionally, the escape canal has been seted up on the ground, be equipped with in the ground with escape canal intercommunication drain pipe, the cladding has geotechnological cloth on the lateral wall of drain pipe.

Through adopting above-mentioned technical scheme, when groundwater pressure was too high, groundwater was discharged from the escape canal in the drain pipe got into the escape canal, reduced groundwater's pressure, further promoted the stability of ground.

Optionally, a separation layer is laid on the substrate.

Through adopting above-mentioned technical scheme, the separate layer carries out rain-proof protection to the base member, stops the rainwater and forms ponding at the base member surface, reduces the erosion of rainwater to the base member.

Optionally, a permeation layer is disposed within the matrix.

Through adopting above-mentioned technical scheme, the infiltration layer permeates the rainwater on the convenient base member downwards fast, reduces to appear the ponding condition on the base member top surface.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the infiltration well is arranged to guide the underground water on the upper layer in the foundation to the lower layer, so that the influence of the underground water on the matrix under the action of pressure is reduced, the stability of the matrix is improved, and the stability of the roadbed is improved;

2. the heat that sets up insulating layer separation base member top surface conducts downwards, reduces the heat and to the ground conduction, reduces ground temperature rate of rise, promotes the stability of ground, further promotes the stability of road bed.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram showing the internal structure of the permeation well.

Figure 3 is a schematic diagram embodying a vent tube structure.

Description of reference numerals: 11. a ground layer; 12. a diving layer; 13. a water barrier layer; 14. a groundwater layer; 15. a ground layer; 2. a substrate; 3. a separation layer; 4. a permeable layer; 5. a thermal insulation layer; 6. a permeate well; 7. a reverse filter element; 8. a support layer; 9. a support plate; 10. a vent pipe; 16. a vent hole; 17. a drainage ditch; 18. a drain pipe; 19. and (4) geotextile.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses stable roadbed structure. Referring to fig. 1, the stabilized roadbed structure includes a foundation and a base body 2 provided on the foundation. The foundation comprises a ground layer 11, a diving layer 12, a water-resisting layer 13, a groundwater layer 14 and a ground bottom layer 15 which are arranged from top to bottom.

Referring to fig. 1 and 2, a permeation well 6 is arranged in the base body 2, the bottom end of the permeation well extends into the ground bottom layer 15, a plurality of permeation holes are formed in the side wall of the permeation well 6, and the permeation holes are communicated with the diving layer 12 and the underground water layer 14. The groundwater in the diving layer 12 enters the infiltration well 6 from the infiltration holes, and the groundwater flows into the groundwater layer 14 along the infiltration well 6, so that the water pressure of the diving layer 12 is reduced, and the influence of the groundwater in the diving layer 12 on the surface flatness of the substrate 2 is reduced.

Referring to fig. 1 and 2, a reverse filter 7 for filtering sediment in underground water is arranged in the infiltration well 6, the reverse filter 7 is graded broken stone, and the particle size of the graded broken stone is gradually reduced along the direction from the inner wall of the infiltration well 6 to the central axis of the infiltration well 6. After entering the infiltration well 6, the underground water gradually passes through the graded broken stones, and the graded broken stones filter the underground water, block sediment in the underground water and reduce the situations of infiltration hole blockage and water and soil loss.

Referring to fig. 1 and 2, a support plate 9 is fixed on the inner wall of the permeate well 6, a support layer 8 is arranged on the support plate 9, and the support layer 8 fills the interior of the permeate well 6. The main function of the base body 2 is to bear the load from the road surface, and the supporting plate 9 and the supporting layer 8 improve the strength of the infiltration well 6 and ensure the overall strength of the roadbed.

Referring to fig. 1, two drainage ditches 17 are formed in the top surface of the foundation, and the two drainage ditches 17 are arranged on two sides of the base body 2 at intervals. When rainwater weather appears, the rainwater slides down from base member 2, flows to escape canal 17, and escape canal 17 in time discharges the rainwater, and the reduction ponding condition appears. Be equipped with drain pipe 18 in the groundwater layer 14, drain pipe 18 specifically can be the blind pipe, and drain pipe 18 one end upwards extends and communicates with escape canal 17, and the cladding has geotechnological cloth 19 on the lateral wall of drain pipe 18. When the pressure of the underground water is increased due to the strong precipitation weather, the underground water is flushed to the drainage ditch 17 along the drainage pipe 18 under the action of the pressure, the pressure of the underground water is reduced, and the condition that the roadbed surface is uneven due to the underground water is reduced. The geotextile 19 prevents silt from entering the drainage pipe 18, and reduces water loss and soil erosion.

Referring to fig. 1, be equipped with permeable formation 4 in the base member 2, permeable formation 4 specifically can be the metalling, and the metalling has good bearing capacity and infiltration ability, makes things convenient for the rainwater to outwards discharge in the base member 2 fast, reduces ponding on the base member 2, reduces with the erosion of rainwater to base member 2.

Referring to fig. 1 and 3, the level runs through in the base member 2 has many ventilation pipes 10 of arranging along the road bed extending direction interval, has all seted up a plurality of ventilation holes 16 on the lateral wall of every ventilation pipe 10, and a plurality of ventilation holes 16 are arranged along the length direction interval of ventilation pipe 10, and every ventilation hole 16 all sets up towards the ground. Some regional temperature variation that has frozen soil is great to the influence of ground, and the ground takes place to lead to base member 2 on the ground to change along with it after warping, and ventilation hole 16 makes things convenient for the heat that gets into the ground in time to discharge, reduces the ground temperature variation, promotes the stability of ground, and then promotes base member 2's stability.

Referring to fig. 1, be equipped with insulating layer 5 in the base member 2, when the weather becomes warm 2 surfaces of base member and heats up under the illumination effect rapidly, insulating layer 5 separates base member 2 top and base member 2's middle part and lower part, reduces the heat conduction of base member 2 inside and base member 2 to the heat of ground conduction, and further the stability of ground promotes base member 2's stability.

Referring to fig. 1, a separation layer 3 is laid on the top surface of the substrate 2, and the separation layer 3 may be a waterproof cloth. Most rainwater is blocked by the separating layer 3, so that the erosion of the rainwater to the base body 2 is reduced, and the stability of the base body 2 is further improved.

The implementation principle of a stable roadbed structure in the embodiment of the application is as follows: a drain pipe 18 and a penetration well 6 are provided in the foundation, a drain 17 is excavated in the foundation, and the drain pipe 18 is communicated with the drain 17. And laying a base body 2 on the foundation, and covering a separation layer 3 on the laid base body 2 for waterproofing. In the presence of strong precipitation, groundwater is allowed to flow from the phreatic zone 12 into the groundwater table 14 through the infiltration well 6, and when the water pressure in the groundwater table 14 is too high, groundwater is allowed to flow under pressure along the drain pipe 18 into the drain 17 and is discharged from the drain 17. In some areas with large temperature influence, the heat insulation layer 5 and the ventilation pipe 10 insulate heat of the base body 2, so that the temperature change of the foundation is reduced, and the stability of the foundation is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A stable roadbed structure, characterized in that: including ground and base member (2) of setting on the ground, be equipped with infiltration well (6) in base member (2), vertical direction downwardly extending is followed in infiltration well (6) to the ground, a plurality of infiltration holes have been seted up on the lateral wall of infiltration well (6), be equipped with in infiltration well (6) and be used for filtering anti-filtration piece (7) of groundwater silt.

2. A stabilized roadbed structure according to claim 1, characterized in that: the reverse filter (7) is graded broken stone, and the particle size of the graded broken stone is gradually reduced along the direction from the inner wall of the infiltration well (6) to the central line.

3. A stabilized roadbed structure according to claim 1, characterized in that: and a supporting plate (9) is arranged on the inner wall of the infiltration well (6), and a supporting layer (8) is arranged on the supporting plate (9).

4. A stabilized roadbed structure according to claim 1, characterized in that: a heat insulation layer (5) is arranged in the base body (2).

5. A stabilized roadbed structure according to claim 1, characterized in that: many ventilation pipes (10) have been run through to the level in base member (2), every a plurality of ventilation holes (16), a plurality of all set up towards the ground in ventilation hole (16) on the lateral wall of ventilation pipe (10).

6. A stabilized roadbed structure according to claim 1, characterized in that: seted up escape canal (17) on the ground, be equipped with in the ground with escape canal (17) intercommunication drain pipe (18), the cladding has geotechnological cloth (19) on the lateral wall of drain pipe (18).

7. A stabilized roadbed structure according to claim 1, characterized in that: and a separation layer (3) is laid on the substrate (2).

8. A stabilized roadbed structure according to claim 1, characterized in that: a permeable layer (4) is arranged in the base body (2).